Here is a common weather myth for you: Highway overpasses can provide safe shelter if you are on the road during a tornado.

This statement is completely false and a true example of a weather myth.  The myth got started thanks to constant news footage showing crews seeking shelter under an overpass and surviving the dangerous storms.  Since those clips have aired, and because the news crew survived, many people assume that highway overpasses are a safe place to seek shelter during a tornado.  The opposite is in fact true.  An overpass does not protect you from a tornado's winds and is an extremely dangerous place to seek shelter.  Anytime you put yourself above ground level during a tornado, you are in harm's way.  Drivers who pull over on the highway and run to overpasses for relief not only risk injury and death to themselves, but also put other motorists in jeopardy by blocking the roadway near the overpass.  High winds from the tornado could also blow debris under the overpass where you are trying to hideout.  Some people have been knocked unconscious by flying rocks and cement from bridges.  The space underneath an overpass is narrow and this actually helps the airflow accelerate, causing faster wind speeds under bridges than the surrounding area.  If you are out driving during a tornado, the best thing to do is get out of your car and find a ditch where you can lie flat and close to the ground.  Another common weather myth has just been debunked!